My Irish Roommate (Yes, Daddy Book 38)

When my new stepmother asked me to take in her kid, Ricki with an "i, from America, I had no idea what I was getting myself into. As an ex-MMA fighter and gym owner, I don't need much so I live in a studio apartment above my gym. I don't want to share my space with some skinny boy with a Boston accent.
Ricki knocks on my door and I mentally prepare to find an annoying and insufferable roommate, but my stepmother's kid is not what I expected.at all.
Instead of a pimply-faced twenty-year-old boy, Ricki is the hottest little girl I've ever laid eyes on.
I'm not planning to let her out of my sight, but I need to know why a young and innocent girl like her would want to move in with a forty-year-old ex-fighter like me.
My blood boils when she tells me she's moved continents to run from a man who is stalking her.
Our parents won't approve but I need to be with her. She's all I can think about and keeping her safe is my only priority. I'll face any adversary out there to make her mine and hold on to her forever.
I don't care who her eejit stalker is. If he thinks he can come and take what's mine, well.
He's about to find out why I'm a legend in the cage, and will do anything to protect what's mine outside of it.